Stark about learner’s harsh sound? (5)
I believe the answer is:
blare
'harsh sound?' is the definition.
(I've seen this in another clue)
'stark about learner's' is the wordplay.
'stark' becomes 'bare' (I've seen this in another clue).
'about' indicates putting letters inside.
'learner' becomes 'l' (as in a learner driver with L-plates on their car).
'bare' placed around 'l' is 'BLARE'.
(Other definitions for blare that I've seen before include "Sound loudly" , "Strident sound" , "Sound loud and harsh" , "Loud harsh noise" , "Roar" .)